William l



(Nuo Model.)

l W". L.BBLT.

' SHUTTER WORKER.

No. 283,194. Patented Aug.

Nrrs rares Y Arnau* j @erica YILLIAM Il. BELT, OF VASHIGTON, DISTRICTOF COLUMBIA.

SHurrER--womais.f1

l SPECIFICATION forming lpart of Letters Patent No.-283,194,`dated August 14,

Application filed April 5, V188?. (Nomodel.)

To a/ZZ whom it may concern:

Be it known that I, NVILLIAM L. BELT, a citizen of the United States, residing at IVashington, in the Districtof Columbia, have invented f certain new and useful Improvements inShutter-Working Devices, of` which the following is a specification, reference being had therein scribed, andpointed out `in the claim.

` In the drawings forming part of this speciflcation, Figure l represents aplanview ofthe ating-levers detached from the window-frame devices attached to awindow-sill andthe shutter, which last is shown in horizontal section.` Fig. 2 represents two modifications of the clamping device. Fig. 3 represents the operand shutter. Fig. 4 is a `modiiication of the brace-bar. Figs. 5 and 6 are details ofthe camgroove, plates, andthe fulcrum for the work- `ing-bar. Y

A represents the bottom rail of a shutter in horizontal section in Fig. l, represented as being closed against the sill of the window. In the broken lines two other positionsof the shutter are shownwone with the shutter half open and the' other with the shutter full open-in each ofwhich positions the operative devices are shown in corresponding lines.

B is the window-frame jamb. C is the inside l. sill or sash-stop. D is the main sill of the win-` dow-frame, and D represents the thickness of the sash-rail.

On the lower edge of-the inside of the bottom rail of a window-shutter, A, is-secnred a rod, l

A', by means of two brackets, a a, which are screwed to the shutter, as seen in Fig. l.- In Fig. 4 is shown a modiiicationf,where two rods, c a, may be used, as will "be hereinafter eX- plained. l l

' ment hinges, B.

pivot e moves the hub F of a bent lever, F',

having `a short arm, F. The long arm F is curved at its end, and is bifurcated, as in Fig. l, and carrieswithin it a f1.iction-roller, j, which is Vdesigned to run along the `inner side of the rod A', as seen in the end view of the lever F',

and also touching the face of the rail of the shutter.

In Fig. 4 is represented a double bar.u a a, which can be used in place of the singlebar, in which case the bent lever F is not bifnrcated, but has one or more friction-rollers, as shown in Fig. 4, and also in the end view of the lever in Fig. 3. 'Io the short arm F" is attached, by a pivot, f, a connecting-lever, G,

which is attached at its other or free end to the clamping-screw H, as Vseen in Fig. 2, by the threaded shank h, or bythe round shank `h of the modified clamp H. In the first case, H, a female thread is cut in the free end of G, so that by turning the screw-clamp H the lever G is closely bound up to the plate I above it. In the clamp H there is no screw, but the shank h is riveted below G at It, andbetween G and plate `I is an eccentric, t', fastened to the shank h, so that a very slight turn will fasten it by binding'the plate I and lever G.

I is a cap-plate, having within it a horseshoe formed groove, in which moves the shank h-or h', as either clamp may be used, and on top isthe clamp II or II', as seen in Fig. 2. rlhis plate I covers a mortise in sill C, wherein the end of lever G is free to move inwardly and around, according to the form of the groove. In the edge of plate I is an opening for the lever G to enter,- and that orifice is formed as shown in Fig. 6,where the points 7c act as fulcra for the bearing of the lever G as it moves in or out of the mortise.

In Figs. 1 and 3 a slot, g, is shown in lever G, and a pin, t', projects from the' front of the bottom part of plate I, through this groove r/,

`fulcrum in the .groove g for the lever G, and

when thus placed the horseshoe-groove in plate Imustbe widened to correspond with the movements of the lever G, as in Fig. 5.

When the frame of the window is so constructed that sill C is below the sill D, then a box and plate, I, must be constructedas shown in Fig. 5. A capplate, I', is used to coverthe IOO horseshoefgroove in I to prevent the outside air passing from under the sash and into the room, and also to keep out the dustfrom the mortise.

To open the shutter, loosen the clamp-Sorenr H and move it from its position at No. 1 along the groove -to No. 2, when the shuttle will be half open, as seen in short broken lines. Vhen the clamp H has passed .to No. 3, the shutter will have passed back againstthe Wall, as seen in long and short broken lines. The broken lines of the operating-levers F/FQ and G show the different positions of these parts. At any desired position ofthe shutter it can be retained Y. there by tightening the clamp H. rlhe lower to or fro in the straight parts ofthe groove in I, then G is a connecting-bar to pull or shove upon the short arm F of the bent lever; but when the handle H moves around the curved part or the arch of the groove it is evident that the bearing-points 7c 7c in Figs. l and G act as fulcra, or, as in Fig. 5, the pin i serves the same'purpose Within the groove g. In either casethis is one ofthe essential features in my invention, and either can be employed to suit the particular frame in anyhonse where one or the other may be best adapted to give sufilcient leverage to operate the device, as in narroW Windows the short fulcrum will be suicient, Whereas in Wider shutters a longer leverage may be required. I claiml The combination of the curved lever IW F, pivoted on the sill 'of the frame and having a horseshoe-formed groove and one or more friction-rollers at the end, the bar A', connected to a shutter, the connecting bar and lever G, clamp H, and plate I, provided with the fnlcrunrbearings, all substantially as and for the purpose described.

In 'testimony whereof I affix my signature in presence of two Witnesses.

l WILLIAM L. BELT.

lVitnesses JOHN Loonin, WiLTJAM NEUMANN. 

